PP-1 A uniform beam of length 2.00 meters is fixed to a frictionless axle at its end, as shown in the figure on the right. You hold the beam at an angle of 0 = 4.00 degrees from the vertical Att = 0, you let the beam go so that it begins to undergo simple harmonic motion a What is the period (in seconds)? b Write down the function O(r) that describes the motion. c) What is the angle of the beam (in degrees) at t = 4.00 s? d) What is angular acceleration of the beam (in rad/s?) at t = 4.00 s